wi_eab_quarantineAbout the Ash Borer

The emerald ash borer (Agrilus planipennis or Agrilus marcopoli and EAB) is an invasive species that is spreading across North America causing a wipe out to our ash tree population. The Ash Borer could threaten the life of 7.5 billion ash trees in the United States.

Since first being detected in Michigan in 2002, the emerald ash borer has spread to eleven states and parts of Canada. Over 50 million ash trees have been killed and all other ash varieties in North America are in danger. Green and black ash is its favorite target but white and blue ash are still targets.

The average adult length is 7.5 to 13.5 mm long and 4 mm (1⁄6 in) wide. The larvae are approximately 1 mm in diameter and 26 to 32 mm long, and are a creamy white color. Each female adult lays around 300 eggs in bark crevasses during the course of one summer. After hatching, larvae burrow into the bark and feed on the cambium and phloem, effectively causing death within two years.

Read More from Wisconsin’s Emerald Ash Borer Information Source Here

 June 2017


Officials say Butler County Iowa has become the 51st County In Iowa in which the Emerald Ash Borer has been found. The infestation was found in a tree in Clarksville.

 May 2017

Watch this news video on the Emerald Ash Borer in Charlotte, NC:

2016 November

Emerald Ash Borer found in Hampstead & Lafayette Counties, AR; Clarke County, IA; Baraga County, MI; and Augusta, Greene & Spotsylvania Counties, VA.

2016 November

Indiana rescinded their state quarantine.

2016 November

Lincoln Parish, LA; Delaware County, OK; Lac Courte Oreilles Band of Lake Superior Chippewa Indian Reservation, WI; Sawyer County, WI; and White County, TN were added to the Federal EAB quarantine.

2016 October

Emerald Ash Borer is now confirmed in Manitowoc County, Wisconsin.

2016 October

Emerald Ash Borer found in Delaware County, OK, Alabama, Iowa and Virginia. 

2016 August

Emerald Ash Borer is now confirmed in Delaware.

2016 June

Emerald Ash Borer is now in Nebraska.

2016 May

Emerald Ash Borer confirmed in Texas.

2015 Winter

Emerald Ash Borer found in Louisiana.

2015 August

Maryland rescinds state quarantine.

2014 Summer

Emerald Ash Borer found Arkansas.

2014 Spring

Emerald Ash Borer found in New Jersey.

2013 Fall

Emerald Ash Borer is now in Colorado.

2013 Summer

Emerald Ash Borer found in North Carolina and Georgia.

2013 Spring

Emerald Ash Borer found in New Hampshire.

2012 Summer

Emerald Ash Borer found in Connecticut , Kansas and Massachusetts.

2010 April

Milwaukee, Waukesha, and Racine Counties of Wisconsin have been added to our map. The entire state of West Virginia, the Northern part of Kentucky, and the remaining Eastern Counties of Michigan have also been added.

2009 August

Emerald Ash Borer is now in Canada.

2009 June

Emerald Ash Borer has been found in New York State, in the Cattaraugus County town of Randolph.

2009 May

Spread of the emerald ash borer was confirmed by the Minnesota Department of Agriculture in St. Paul, Minnesota.

2009 April

Detected in Victory (western part of the state), Wisconsin by agricultural officials. This town borders Iowa and Minnesota.

2008 August

Wisconsin confirmed that the first appearance in the state in the village of Newburg, Wisconsin, in Ozaukee County.

2008 July

Missouri Department of Agriculture has detected the emerald ash borer in the state

2008 June

Chicago, Illinois reports the emerald ash borer has been found in their city.

2007 December

Federal quarantine has been imposed on the following areas in the U. S. for Emerald Ash Borer: the lower peninsula of Michigan; Mackinac County, Michigan; the entire states of Ohio, Illinois, and Indiana; Prince Georges County, Maryland; and Fayette County, West Virginia.

2007 October

An Emerald ash borer larva was discovered in a West Virginia Department of Agriculture “detection tree” located in Fayette County.

2007 June

Emerald ash borers have been found in Cranberry Township, a suburb of Pittsburgh, Pennsylvania.

2006 July

Infestations were discovered in northern Cook County, Illinois, including Wilmette, Evanston, and Winnetka.

2005 September

Michigan announced and ash borer infestation in the Upper Peninsula for the first time. Several counties in Indiana are under quarantine.